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Table 1 Pre-defined weights on each analyzed category

From: DAViS: a unified solution for data collection, analyzation, and visualization in real-time stock market prediction

News sentiment News category Public sentiment
Class Weight Class Weight Class Weight
Positive 1.0 Report 2.5 Positive 1.0
Negative 1.5 Review 2.0 Negative 1.5
Neutral 0.0 Market 0.0